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- Which of the following firewalld commands can be used to allow incoming SSH connectionsthe next time the system is booted?a. firewall-cmd --add-service sshb. firewall-cmd --add-port 22/tcpc. firewall-cmd --add-port 22/udpd. firewall-cmd --add-service ssh --permanentAn attacker detects that commands such as "cd,ls,rm" do not work when they provide an SSH connection to a server with a compromised Linux operating system. Which of the following is the first command the attacker should run?A)bash_historyB)'echo $PATH'C)cat etc/passwd'D)'cat /etc/os-release'Whilst practicing with Windows Powershell: 1. On a machine called server there are leftover rules that are long disabled. One of these rules is allowing connections over port 23, where a Telnet client would run. Remove the firewall rule allowing Telnet connections on the server machine. (I am trying to locate the rule with Get-NetFirewallRule | Where-Object -Displayname -like *"Telnet*") But am having trouble finding the rule to remove.
- You want to find weaknesses on a host device and compile findings into a database. What do you use? A. Ping B. Port scanner C. Vulnerability scanner D. Exploit toolkit2. How do you activate the FTP Server components on your Windows 10 machine? 3. How do you install SSH Client & Server in your Windows 10 machine? 4. At which layer of OSI reference model FTP and SSH operate?The proposal to send a boot ID along with a message ID for each remote procedure call is to: a) Allow the client to tell if it received a duplicate response to a remote procedure call. b) Enable the client to identify whether the response came from an alternate backup server. c) Allow the server to distinguish among messages coming from different clients. d) Avoid having the server think a message is a duplicate when it is not.
- . Which technology prevents the environment from being over-controlled with performance-degrading security measures for application? Runtime application self-protection (RASP) Intrusion detection system (IDS) Distributed denial of services (DDoS) Quality of services (QoS)An attacker detects that commands such as "cdilsrm" do not work when they provide an SSH connection to a server with a compromised Linux operating system. Which of the following is the first command the attacker should run?A)bash_historyB)'echo $PATH'C)cat etc/passwd'D)'cat /etc/os-release'Problem 3 Short Answer A shoulder surfer reads what users enter on keyboards such as logon names, passwords and PINs. How to prevent shoulder surfing? What are firewalls? What are advantages of hardware firewalls? The following code is a Perl script, and it runs on Kali Linux. What is the result. # Perl program demonstrating branching $word = "Hack"; &speak; $word = "Or"; &speak; $word = "Die!"; &speak; sub speak { print "$word\n"; }
- Question for Virtual machines having four operating Win 7/8/10 and Linux on VMWare. how to set up the Win 7/8 VM to be the internet proxy for all internet connections on both the Linux and Windows VMs.Describe the macOS application sandboxing mechanism. How does it enhance security by isolating applications from each other and the system?Can you create an executable script that will use nmap scans at varying intervals to scan 10 well known ports and print the status of the ports in easily readable manner?